The Impact Isolation Class (IIC), measured in decibels, is the classification system used to determine sound impact from floor to ceiling in a structure. The IIC is not to be used to measure airborne sound penetration or absorption in walls. The IIC numerical rating efficiency increases with improved impact isolation performance of

This set of Concrete Technology Multiple Choice Questions & Answers (MCQs) focuses on “Structural Light Weight Concrete”. 1. Light weight cement content for compressive strength 2500 psi is _____ pounds per cubic yard. a) 400-510 b) 440-560 c) 530-660 d) 630-750 View Answer

Advantages and Limitations of Precast Concrete Construction in High-rise Buildings: Hong Kong Case Studies L. Jaillon and C.S. Poon ABSTRACT The Hong Kong construction industry heavily relies on conventional cast in-situ construction involving extensive use of wet trades and on-site construction processes.

Although concrete is seen by many as a single material, it can be produced with many variable characteristics including strength, fluidity, colour and weight. The general definition for normal weight concrete is that it must have an oven dry density between 2000-2600 kg/m 3 , the majority of

R.C.C Stairs OR Reinforced Concrete Stairs: RCC Stairs Details. RCC stairs may be the most common stairs widely used than any other types of stair. These stairs can be easily moulded to any desired shape and are better wear and fire resistant. The steps of RCC stairs are made by using ordinary cement concrete.

Advantages. There are several advantages to using the e-class method. Kirtman ( ) examines the differences between online and in-class courses, and asks students about the advantages of studying online. Students "pointed to having to be more responsible for their own learning and being able to review material more than once".

LIGHTWEIGHT CONCRETE This chapter covers some of the physical properties of lightweight concrete. The information is based on many laboratory studies and records of a large number of existing structures that have provided satisfactory service for more than 85 years. Typically, properties of lightweight concrete have been compared with those of

Lightweight Concrete. Definition: concrete of substantially lower density than that made using aggregates of normal density; consists entirely of lightweight aggregate or a combination of lightweight aggregate and normal-density aggregate; its equilibrium densities are generally between 70 and 120 lb/ft3 (1120 and 1920 kg/m3).-.

The concrete delivery ticket is often overlooked on the jobsite, even though it is full of useful information. Delivery tickets are written so that they constitute a purchase order with legal and

a) Fiber-reinforced concrete. Fibrous structures are used for reinforcement purposes. b) Lightweight concrete. Aggregates with lower weights are used. It is used to decrease the compressive or gross weight of structures. c) No- cracking concrete. This type of concrete is used in structures, which are prone to cracks. d) Fire resistance concrete

In fire, concrete performs well - both as an engineered structure, and as a material in its own right. It has the highest fire resistance classification (class AI) under EN 13501-1:2007- A1:2009. EN 13501-1:2007-A1: specifies the method of fire classification for construction products and building elements.

The long wait is over looking for the solid lightweight concrete blocks in India. The solutions to all are Expanded Clay Aggregate Solid Construction Block. For the 1st time in India, concrete building blocks are offered which are not only lightweight concrete blocks but are also falling in the premium segment of solid construction blocks.

Lightweight Concrete -Types, Classification, Uses and Advantages.pdf - Free download as PDF File (.pdf), Text File (.txt) or read online for free.

The benefits of fly ash in concrete: Workability, concrete is easier to place with less effort. Ease of pumping, pumping requires less energy and longer pumping distances are possible. Improved finishing, concrete is creamier with clear sharp architectural patterns easier to achieve. Reduced bleeding, fewer bleed channels decrease permeability

When we estimate the concrete quantity, the aggregates will occupy 70 to 75% of the volume.. The classification of aggregates depends on the grain size, density, shape, and geographical origin. So the properties of aggregates will differ based on the classification, and it may influence the mix of the concrete and strength.

Sika’s Concrete Repair Solutions Have Many Benefits We provide all necessary products for the technically correct repair and protection of concrete. Special products and systems are available for use across many types of structures and for concrete repair in different application, climate and exposure conditions.